package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.aspectj.weaver.ast.Or;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

/*
			  ________   ___   ___        ___   ________   ___   ___        ___
	 ________|\   __  \_|\  \_|\  \______|\  \_|\   __  \_|\  \_|\  \______|\  \_________
	 \       \ \  \_\ /_\ \  \\ \  \     \ \  \\ \  \_\ /_\ \  \\ \  \     \ \  \        \
	  \       \ \   __  \\ \  \\ \  \     \ \  \\ \   __  \\ \  \\ \  \     \ \  \        \
	   \       \ \  \_\  \\ \  \\ \  \____ \ \  \\ \  \_\  \\ \  \\ \  \____ \ \  \        \
	    \       \ \_______\\ \__\\ \_______\\ \__\\ \_______\\ \__\\ \_______\\ \__\        \
	     \       \|_______| \|__| \|_______| \|__| \|_______| \|__| \|_______| \|__|         \
	 	  \___________________________________________________________________________________\

+------------+
|2020/4/14   |
|18:06       |
+------------+
*/
@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderDao orderDao;
    @Autowired
    private MemberDao memberDao;
    @Autowired
    private OrderSettingDao orderSettingDao;

    @Override
    public Result order(Map map) throws Exception {

        //1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
        String orderDate = (String) map.get("orderDate");
        //把数据转成date类型
        Date date = DateUtils.parseString2Date(orderDate);
        OrderSetting orderSetting = orderSettingDao.findByOrderDate(date);
        if (orderSetting == null) {
            //未设置预约
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        int number = orderSetting.getNumber();
        int reservations = orderSetting.getReservations();
        if (number <= reservations) {
            //预约已经满了
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
        //4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
        Member member = memberDao.findByTelephone((String) map.get("telephone"));
        if (member != null) {
            //是会员
            Integer memberId = member.getId();
            int setmealId = Integer.parseInt((String) map.get("setmealId"));
            Order order = new Order(memberId, date, null, null, setmealId);
            List<Order> orderList = orderDao.findByCondition(order);
            if (orderList != null && orderList.size() > 0) {
                //已经完成了预约，不能重复预约
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        } else {
            //不是会员自动注册
            member = new Member();

            member.setName((String) map.get("name"));
            member.setPhoneNumber((String) map.get("telephone"));
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());

            memberDao.add(member);
        }

        //5、预约成功，更新当日的已预约人数
        Order order = new Order();
        order.setMemberId(member.getId());
        order.setOrderDate(date);
        order.setOrderType((String) map.get("orderType"));
        order.setOrderStatus(Order.ORDERSTATUS_NO);
        order.setSetmealId(Integer.parseInt((String) map.get("setmealId")));

        orderDao.add(order);
        //设置已预约人数+1
        orderSetting.setReservations(orderSetting.getReservations()+1);
        orderSettingDao.editReservationsByOrderDate(orderSetting);

        //预约成功返回id
        return new Result(true,MessageConstant.ORDERSETTING_SUCCESS,order.getId());
    }

    @Override
    public Map findById(Integer id) throws Exception {
        Map map = orderDao.findById4Detail(id);
        if (map != null) {
            Date date= (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(date));
        }
        return map;
    }
}
